Quarterly report pursuant to Section 13 or 15(d)

Financing Agreements - Narrative (Details)

v3.22.2
Financing Agreements - Narrative (Details)
3 Months Ended 9 Months Ended
Jun. 30, 2022
USD ($)
Dec. 31, 2021
Jun. 30, 2021
Jun. 30, 2022
USD ($)
Jun. 30, 2021
Jun. 08, 2023
Jun. 21, 2022
USD ($)
Jun. 08, 2022
USD ($)
Sep. 30, 2021
USD ($)
Jun. 16, 2020
USD ($)
Dec. 15, 2014
USD ($)
Debt Instrument [Line Items]                      
Long-term debt $ 1,214,600,000     $ 1,214,600,000         $ 1,212,900,000    
Covenant terms, maximum ratio of indebtedness to earnings before interest, taxes, depreciation, and amortization   3.50                  
Covenant terms, minimum ratio of earnings before interest, taxes, depreciation, and amortization to interest expense   3.00                  
$1,000 revolving credit facility (excluding outstanding letters of credit)                      
Debt Instrument [Line Items]                      
Long-term debt 0     0         0    
Letters of credit outstanding, amount 15,400,000     15,400,000              
Line of credit facility, remaining borrowing capacity 1,184,600,000     1,184,600,000              
Current borrowing capacity $ 933,300,000     $ 933,300,000              
Weighted-average interest rate         2.28%            
Weighted average facility fee 0.15%   0.17% 0.15% 0.24%            
$1,000 revolving credit facility (excluding outstanding letters of credit) | Minimum | Base Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.00%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Minimum | Other Borrowings                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.90%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Minimum | SOFR                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       1.00%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Minimum | Alternate Bate Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.00%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Maximum | Base Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.525%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Maximum | Other Borrowings                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       1.525%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Maximum | SOFR                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       1.75%              
$1,000 revolving credit facility (excluding outstanding letters of credit) | Maximum | Alternate Bate Rate                      
Debt Instrument [Line Items]                      
Basis spread on variable rate       0.75%              
$100 Series A Notes (4)                      
Debt Instrument [Line Items]                      
Debt instrument, face amount                     $ 100,000,000
Debt interest rate, percent                     4.60%
Long-term debt $ 99,800,000     $ 99,800,000         99,800,000    
Other Financing Agreements                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity 387,700,000     387,700,000         411.5    
Line of credit facility, amount utilized for bank guarantees 229,400,000     229,400,000         254.0    
$400 senior unsecured notes (1)                      
Debt Instrument [Line Items]                      
Debt instrument, face amount                   $ 400,000,000  
Long-term debt 396,700,000     396,700,000         395,800,000    
$375 senior unsecured notes, net of discount (2)                      
Debt Instrument [Line Items]                      
Long-term debt 372,000,000.0     372,000,000.0         371,500,000    
Former Credit Agreement | $1,000 revolving credit facility (excluding outstanding letters of credit)                      
Debt Instrument [Line Items]                      
Debt issuance expense 1,900,000     1,900,000              
Credit Agreement | $1,000 revolving credit facility (excluding outstanding letters of credit)                      
Debt Instrument [Line Items]                      
Debt issuance expense 3,000,000.0     3,000,000.0              
Syndicated credit facility | Letter of Credit                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity             $ 225,000,000   175,000,000    
Debt issuance expense             $ 1,000,000.0   $ 200,000    
L/G Facility Agreement Amendment                      
Debt Instrument [Line Items]                      
Covenant terms, maximum ratio of indebtedness to earnings before interest, taxes, depreciation, and amortization   4.00                  
2019 Notes | $375 senior unsecured notes, net of discount (2)                      
Debt Instrument [Line Items]                      
Debt instrument, face amount 375,000,000     375,000,000              
2021 Notes | $375 senior unsecured notes, net of discount (2)                      
Debt Instrument [Line Items]                      
Debt instrument, face amount $ 350     $ 350              
Revolving Credit Facility | Former Credit Agreement                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity               $ 900,000,000      
Revolving Credit Facility | Credit Agreement                      
Debt Instrument [Line Items]                      
Line of credit facility, maximum borrowing capacity               1,000,000,000      
Accordion feature, increase limit               600,000,000      
Secured Debt | Credit Agreement | $1,000 revolving credit facility (excluding outstanding letters of credit)                      
Debt Instrument [Line Items]                      
Debt instrument, face amount               500,000,000      
Delayed draw, amount               $ 200,000,000      
Debt interest rate, percent               1.25%      
Secured Debt | Credit Agreement | $1,000 revolving credit facility (excluding outstanding letters of credit) | Forecast                      
Debt Instrument [Line Items]                      
Debt interest rate, percent           1.875%